diff --git a/.gitignore b/.gitignore
index 7f93cc5..3bfd84e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,7 @@
 *.pyc
+# Jekyll-generated files
+Gemfile.lock
+_site/
 # When developing for ec2 `vagrant provision' is quite handy
 /Vagrantfile
 /.vagrant